Provided are novel compounds represented by the following general formula [1] or pharmaceutically acceptable salts thereof, that inhibit LpxC, as well as pharmaceutical drugs comprising those compounds or pharmaceutically acceptable salts thereof, that exhibit antimicrobial activity against gram-negative bacteria including multi-drug resistant strains and that are useful in the treatment of bacterial infections.
1, 3-Dipolar cycloaddition reaction of trimethylstannylacetylene with nitrile oxides yielded 3-substituted 5-(trimethylstannyl)isoxazoles. On the other hand, the same reaction of (trimethylstannyl)phenylacetylene, -1-hexyne, and -(trimethylsilyl)acetylene gave 3, 5-disubstituted 4-(trimethylstannyl)isoxazoles almost regioselectively. The regioselectivity of the cycloaddition reaction is interpreted by application of the frontier-electron theory.
Pyrrole Derivatives as Dna Gyrase and Topoisomerase Inhibitors
申请人:Basarab Gregory Steven
公开号:US20080269214A1
公开(公告)日:2008-10-30
Compounds of formula (I) and their pharmaceutically acceptable salts are described: Formula (I). Processes for their preparation, pharmaceutical compositions containing them, their use as medicaments and their use in the treatment of bacterial infections are also described.
Design, synthesis, and biological evaluation of 5-(1H-indol-5-yl)isoxazole-3-carboxylic acids as novel xanthine oxidase inhibitors
作者:Dongqian Huang、Wenye Li、Yilan Zhao、Cheng Xie、Xiaogang Luo、Fengshou Wu、Zhiqiang Xu、Qi Sun、Genyan Liu
DOI:10.1016/j.ejmech.2024.116443
日期:2024.5
Xanthineoxidase (XO) is a key enzyme for the production of uric acid in the human body. XO inhibitors (XOIs) are clinically used for the treatment of hyperuricemia and gout, as they can effectively inhibit the production of uric acid. Previous studies indicated that both indole and isoxazole derivatives have good inhibitory effects against XO. Here, we designed and synthesized a novel series of -